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Yaf_Session::start	Yaf_Session::valid

Yaf_Session	Last updated: Mon, 26 Oct 2026

Yaf_Session::__unset

(Yaf >=1.0.0)

Yaf_Session::__unset — Remove a session key

Description

public function Yaf_Session::__unset(string $name): void

Removes a session key and its value. This method is called when unset() is used on a session object property.

Parameters

name: The session key to remove.

Return Values

No value is returned.

Examples

Example #1 Yaf_Session::__unset() example

<?php
$session = Yaf_Session::getInstance();
$session->start();

$session->user_id = 42;

// ... when the user logs out
unset($session->user_id);

var_dump(isset($session->user_id));
?>

The above example will output something similar to:

bool(false)

See Also

Yaf_Session::del() - Remove a session key
Yaf_Session::offsetUnset() - Remove a session key (ArrayAccess)

Yaf_Session::start	Yaf_Session::valid

Yaf_Session	Last updated: Mon, 26 Oct 2026